Clock disappeared from system tray?

I don't know how or why, but the clock have disappeared from the system tray on my computer. Any ideas where on earth it went, and how do I get hold of it back???

Clock disappeared from system tray?

right click on the toolbar and stir to properties, then click show clock
Right click the grey toolbar at the bottom, later properties, then check the Show the clock box.
Rightclick at the railing, select properties, Then under the taskbar fane check the box beside Show the clock
shift to the task banister and right click and then click properties consequently check the box ,that says show clock. and close ..the program your clock should be wager on .